From The Washington Post:
Things began changing shortly after 10 p.m. Saturday night when Senate Majority Leader Harry M. Reid (D-Nev.) announced that talks between McConnell (R-Ky.) and Vice President Biden had made significant progress, prompting Reid to delay a vote that had been scheduled for 1 a.m. Sunday on his own debt-limit measure.
“There are negotiations going on at the White House to avert a catastrophic default on the nation’s debt,” Reid said, after announcing that the vote had been pushed back to 1 p.m. Sunday. “There are many elements to be finalized, and there is still a distance to go before any arrangement can be completed. But I believe we should give everyone as much room as possible to do their work.”